baber/WOPTO huggingface dataset:
Patent DE-2632202-A1 (DE)
Title: Photographic silver halide emulsion prodn. - using rhodium salt and hydroquinone or amino phenol cpd. gives high contrast and stability
Inventor: AKIMURA YOSHITAKA
IPC: G03C1/09
Filed: 1976-07-16
Abstract: In the prodn. of the emulsions a Rh salt (I) is added to give the reqd. high contrast before the end of the first sensitisation stage in the prodn. of an AgBrCl or AgIBrCl emulsion with min. 30 mole % AgCl and max. 5-mole % AgI. A cpd. of the formula HO-A-OH (II) or HO-A-B (III) (in which A is a divalent aromatic gp. B is an amino gp.) or a cpd. which forms an oxidn.-redn. system with a cpd. of this type and can form the cpd. corresp. to the formula (II) or (III) is also added in an amt. of 10-7 to 10-1, pref. 1 x 10-5 to 3 x 10-2 mole/mole AgX, after freeing from salt. The emulsions are developed with a developer soln., which can be a black-and-white or colour developer, including a lith-type developer.
Patent DE-2632531-A1 (DE)
Title: Extraction clasp for radio or TV circuit boards - has small L-shaped plastics element to engage card for removal from chassis module
Inventor: BRETTSCHNEIDER DIETER
IPC: H05K7/14
Filed: 1976-07-20
Abstract: The siple extraction clasp for use on small modular printed circuits such as those found in modular radio and television receivers allows the easy insertion and extraction of the small closely mounted printed circuit cards. The clasp consists of a roughly L-shaped plastic element with a finger operated lever (13) mounted parallel to the front face of a circuit card (3, 4) while the other end is hinged (7) on the card (3, 4). A small projection (9) makes contact with the chassis (1) on which the cards are mounted, and allows easy extraction of the card when the finger operated lever (13) is pulled forward. Plugs and sockets (5, 6) may be carried on the cards and access to these can be guaranteed by suitable holes (15) in any covering plate (14) mounted in front of the cards.
Patent DE-2632790-A1 (DE)
Title: Programme control for cine camera fade in - uses stepped ratchet lever to locate programming drum
Inventor: SCHELLER THOMAS
IPC: G03B19/26
Filed: 1976-07-21
Abstract: The cine camera has a programming drum through which the aperture is progressively opened and closed at the start and end of each scene to control the fade-in of successive scenes. The drum also controls the amount of windback. A stepped cam (26) lever with a series of steps is linked to the release mechanism so that the fade-out is initiated by further depression of te release button. After the release button is released at the end of the scene the wind back is automatic. Further pressure of the button initiates the next scene, progressively superimposed on the end of the last scene.
Patent DE-2633025-A1 (DE)
Title: Powdery material addn. to molten metals - using carrier gas stream through sealed tube which melts on immersion (SW 9.1.78)
Inventor: BARBAKADZE DSCHONDO F
IPC: C21C1/10
Filed: 1976-07-22
Abstract: Powdered material is added to a molten metal with a carrier gas stream, through a metal tube. Tube has a sealed free and which melts on immersing the tube in the molten metal. After completing addn. of the powdered material, the press. of the carrier gas stream is reduced to the ferrostatic press of the molten metal. Process may be used in prodn. of pig iron, steel and nonferrous metals. E.g. Mg, Ca and calcined soda are added to refine melts. Ce, Mg and Ca-Si modify graphite structure in iron, etc. Process allows intermittent addn. of powdered material to the molten metal. Press. reduction interrupts continuous carrier gas supply to molten metal receiver and prevents clogging of pipes by powdery material.
Patent DE-2638201-A1 (DE)
Title: Dishwasher with dispenser for detergent - actuated by closing door, via magnet controlled double valve
Inventor: SCHROTT HUGO
IPC: A47L15/44
Filed: 1976-08-25
Abstract: The detergent for use with a dish-washer is contained within the chamber (1) mounted on the door (7) of the dishwasher. When the door is open it is horizontal and is then filled with detergent which flows into the dispensing compartment (16). When the door is closed it is in the vertical position with the compartment (16) remaining full. A double valve actuated by a magnet opens passageways connected to the orifices (25, 27). Detergent flows out of the orifice (25) into the annulus (10) and into the dish-washer. At the same time air flows through the orifice (27). When the door (7) is swung down to its open position, the compartment (16) is refilled for the next lot of dishes.
Patent DE-2640688-A1 (DE)
Title: Floating piston engine with rotary cylinder block - has inclined cylinders on common shaft with rotary inlet compressor and exhaust turbine
Inventor: REICHEL BERNHARD RAINER
IPC: F02B71/00
Filed: 1976-09-07
Abstract: The floating-piston combustion engine/burbine unit with a rotating engine block comprises cylinders whose axes are inclined relative to their respective radial directions. A rotary compressor is arranged on a common shaft with that of the block and its outlet connects with the cylinders via ducts. The cylinder outlets are ducted to a turbine arranged on the same common shaft. The combustion chamber of each cylinder connects with the other side of the piston via overflow ducts and the gas inlet, transfer, and outlet of the cylinders are controlled by reciprocating piston movement resulting from centrifugal force and expansion during combustion.
Patent DE-2642884-A1 (DE)
Title: Dispersion and separation of fine particles - using high speed air current deflecting off plate at acute angle
Inventor: RUMPF HANS PROF DR ING
IPC: B07B7/086
Filed: 1976-09-23
Abstract: A fine powder is dispersed and carried into the operating part of an air flow separator at a specified feed rate, being accelerated and transported by compressed air. After acceleration it is first caused to impinge at >=40 m/s and an angle of =90 degrees (pref. 15-60 degrees) on to >=1 successive surfaces, brought to the velocity for feeding into the separating zone and then immediately fed to that zone. Complete dispersion and a sharp sepn. of fine particles differing e.g. by 2-4 mu is effected inexpensively using 100 m/s flow speed.
Patent DE-2647280-A1 (DE)
Title: Clothing article storage and transport equipment - has U=shaped channel component fitting over bars of different sizes for holding several clothes hangars
Inventor: WEISS ROLAND
IPC: A47G25/14
Filed: 1976-10-20
Abstract: The equipment is for the transport and storage suspended of articles of clothing on hangers. It has a U-shaped component (1) shaped to fit over bars (6) of different shapes and dimensions. Two or more handles (9) can be fitted to the component in suitable positions, these also acting as stops restricting lateral movement of the clothes hanger (8). Humps (10) can also be provided to restrict the amount for which the clothes hanger hooks can move. The design allows large numbers of articles of clothing to be easily transferred in a single operation between trolleys and storage cupboards etc.
Patent DE-2648699-A1 (DE)
Title: Storage heater for low temp. use - uses salt solutions in water of water-alcohol mixture which gain heat from surroundings
Inventor: SASSE REINHARD
IPC: F28D20/02
Filed: 1976-10-27
Abstract: The storage heater consists of a housing with a storage medium, and is for a system, which gains heat from the atmosphere, waste heat. The housing contains a medium, which at temps. below 100 deg.C latent, is able to store a large amount of heat per unit weight. The heat storing medium consists of salt-like solutions in water; alcohol/water mixtures, or proto-salt; a nitrate of Al, Ca, Cd, Co, Fe, Li, Mg, or Mn; a sulphate of Cd, Co, Fe, or Na; a chloride ff K, Co, Fe, or Mn; Al ammonia sulphate, Al sodium sulphate, or Al potassium sulphate; borax, soda, Na acetate, or Na thiosulphate.
Patent DE-2651926-A1 (DE)
Title: Speed limiting control system for turbo-prop propulsion - has thrust lever stop which is motor energised by turbine parameter signals
Inventor: FEIST ARTUS
IPC: F02C9/00
Filed: 1976-11-13
Abstract: The thrust control level (12) turns a shaft (14) provided with a free wheel coupling (16), a magnetic coupling (18), and an electric motor (20) acting as a stop. A display meter (22) is provided with one contact (24) corresponding to a first predetermined value and a second contact (26) corresponding to the second value. The first contact (24) is connected to the magnetic coupling (18). The second contact (26) leads to the electric motor. A switch (32), actuated by a peg (34), extending from the thrust lever, is able to reverse the electric motor rotation when reverse thrust is selected. The first contact (24) joins the thrust lever to the stop (20) by exciting the magnetic clutch. The second contact sets the electric motor in rotation which pushes back the thrust lever via the magnetic clutch and free wheel.
Patent DE-2709802-A1 (DE)
Title: Impurity removal from semiconductor device formed by ion implantation - by etching with hydrofluoric acid to remove surface layer
Inventor: HAAS ERNST
IPC: H01L21/265
Filed: 1977-03-07
Abstract: Impurities arising from ion implantation processes employed for semiconductors, are removed by etching which removes a surface layer from the semiconductor. The depth of the layer removed is pref. up to 10% of the depth of the doped zone formed by ion implantation. The etching is pref. carried out by etching in HF; or anodic oxidn. of layer, then etching with HF; or by plasma-, ion beam-, or sputter-etching. In mfg. semiconductor devices, ion implantation often carries impurities into the substrate. These impurities can be e.g. Fe, arising from screens, diaphragms, etc. in the ion implantation appts., the impurities poison the semiconductor and must be removed.
Patent DE-2710430-A1 (DE)
Title: Protective rubber knee pad - consists of outer and inner layer joined at each side by rubber rivet also holding carrier strap
Inventor: NIERHAUS IRMGARD
IPC: A41D13/06
Filed: 1977-03-10
Abstract: The knee pad consists of an outer (1) and an inner (2) layer both made of rubber or resilient plastic material. The inner (2) layer encloses the top edge (4) of the outer layer, by the U shaped top edge (3) of the inner layer (2) fitting round the top edge (4) of the outer (1) layer. On both sides of the roughly U shaped knee pad are holes through which a rubber rivet (5) is inserted on each side, to hold the two layers together. On the outside head (6) of the rubber rivet (5) is fixed a carrier strap (7) which extends crosswise to the knee pad.
Patent DE-2711153-A1 (DE)
Title: Double swing frame hospital bed - permits patient to be swung over completely about hinge axis across foot end
Inventor: HAESSIG PETER
IPC: A61G7/00
Filed: 1977-03-15
Abstract: The double frame hospital bed used for totally incapacitated patients, permits the occupant to be swung completely over from a position lying on the back to a position lying on the stomach. It has a wheeled base frame (1) carrying a tilting intermediate frame (4) with a head part (5) and a foot part (6) projecting upwards, to which are attached the two upper frames (12, 13). These are both attached to a plate (79) at the foot end which bolts onto a support plate (8), and which carries upper and lower hinges (14a) so that they can both swing about a horizontal axis at that end. Both the upper frames fold over about a hinge (17) half way along each.
Patent DE-2711162-A1 (DE)
Title: Mounting for milling machine tool head - has toothed coupling between different spindles and drive pneumatically actuated
Inventor: LINE HENRI
IPC: B23Q1/70
Filed: 1977-03-15
Abstract: The machine tool head is flanged to receive different tooling. The peripherally slotted flange adjusts angularly to the head. Axial movement wrt the head disengages the flange from the head and a sleeve engages the spindle drive for indexing setting. Between the head and spindle a sleeve carries a tool flange. An eccentric actuated jaw positions the sleeve axially. Air pressure in a chamber separates a flange slotting from the head interlocking tongue. Sleeve axial travel engages driving ring face teeth with the spindle driving bush teeth, to rotate the flange.
Patent DE-2713426-A1 (DE)
Title: Immersion pump for waste water - has motor drive swivelling pump outlet about vertical axis before coupling outlet to delivery line
Inventor: BLUM ALBERT
IPC: F04D29/60
Filed: 1977-03-26
Abstract: The effluent pump unit comprises an electromotor (11) driving a pump (12) and is arranged to be lowered into an effluent-containing vessel whilst the pump outlet (121) can be swivelled in a horizontal plane and coupled to a pump delivery line (15). The swivel movement is motor-driven (201) via a transmission (203, 204) permitting at least the pump outlet (121) to be rotated about a vertical axis by up to 360 deg. in either direction. The pump may be switched on and off at max. and min. effluent levels. The connection to the line (15) after switching on is delayed for a given time, during which the swivel mechanism is in operation.
Patent DE-2714118-A1 (DE)
Title: Float controlled hot water vent valve - has cylindrical housing containing float mounted on base containing stopcock
Inventor: AGAZZI ROBERT
IPC: F16K24/04
Filed: 1977-03-28
Abstract: The float controlled vent valve particularly for a hot water system, has a stopcock formed in its base. It has a cylindrical housing (1) containing the float (13), and mounted on the base (11), in which the stopcock (23) is fitted. The stopcock can have a cylindrical spindle (23) with conical tip and prismatic head, equipped with a ring shaped barrier segment (25) and a sealing ring (26). The spindle engages in a partially tapped hole in the side of the base. The vent valve housing can fit on a cover (3) and have a cap (4), to which a vertical spindle (5) is secured, whose lower end is formed by a mushroom valve head (6). The cap has a side hole (7), and is spring-loaded (8).
Patent DE-2714168-A1 (DE)
Title: Holder for fixing indicator lamp to circuit board - has long hooked legs engaging hole in board and uses shorter legs as stand
Inventor: KREUZER ERNST
IPC: H05K3/30
Filed: 1977-03-30
Abstract: The holder is designed to fix an indicator lamp to a circuit board so that it is visible through the front plate of the assembly. The holder consists of a recess for the lamp and legs for mounting onto the board. One set of legs rests on top of the board whilst a longer hooked pair of legs engages through a hole in the board. The lamp wires pass out through holes in the rear of the holder and are bent down for soldering into contact holes in the board. Several lamps may be held by one holder.
Patent DE-2717185-A1 (DE)
Title: TV channel selector for VHF and UHF ranges - has FETs operating in UHF range as mixers and as IF amplifier in VHF range
Inventor: KUESPERT LUDWIG
IPC: H03D7/12
Filed: 1977-04-19
Abstract: A FET is designed for use as a mixer in the VHF range, and in the UHF range it may be used as the UHF intermediate frequency output amplifier. Passive components before the FET are such, that in VHF operation only the input signal and the oscillator signal are applied to the FET, and during UHF operation only the intermediate signal is applied to it without switching. The UHF intermediate signal is applied to the FET (1) input (6) through a series resonant circuit (8).
Patent DE-2734140-A1 (DE)
Title: Rubber or plastics floor tile with studded outer surface - has wavy outline along connecting edges to obviate obvious join lines
Inventor: STROPPIANA FERNANDO
IPC: E04F15/10
Filed: 1977-07-28
Abstract: The sides (A, B, C, D) of the rectangular floor tile (1) have a wavy outer edge with each side having an outline which complements that of the other side so that the connecting lines between adjoining tiles have a wavy path which does not form too much a contrast with the outline of the round burls (2) provided on the surface of the tiles. The burls are pref. mounted in rows parallel to the sides of the tile so that the burls of each row are off-set relative to those of the adjoining row. Thus, two opposite sides of the tile have an outer line whose undulating shape is more strongly emphasized than at the two other sides.
Patent DE-2734435-A1 (DE)
Title: Analogue value sound signal transmission system - has matched A=D and D=A converters linked by digital transmission channel
Inventor: KRAKER ALFRED ING
IPC: H04B1/64
Filed: 1977-07-29
Abstract: The system is intended for sound studios, and has a digital transmission channel between an A-D and a D-A converters. The two converters have mutually inverse conversion characteristics between analogue value x and a corresponding digital value y before the analogue-digital conversion. After the digital-analogue conversion the function is y = ar sh(bx), with the factor b determining the scale for the argument bx. The factor b is calculated from a specified equation relating maximum and normal level of the analogue value.
Patent DE-2735325-A1 (DE)
Title: Interpretation of phase encoded angular displacement signals - uses coarse pitch counter which squares sinusoidal input and fine phase detection network connected in parallel
Inventor: KLEMME JOACHIM DIPL ING
IPC: G01D5/244
Filed: 1977-08-05
Abstract: The method of obtaining an accurate interpretation of the phase encoded output signals of a photoelectric, capacitive or inductive linear or angular displacement measurement transducer, uses a coarse pitch counter network which operates in parallel with a fine phase detection network. Two phase shifted, typically sinusoidal signals produced by the transducer concerned are fed to a coarse null point detector network (1) and also to a fine phase detection network (2). The coarse detector squares the incoming signals (3, 4) and uses the edges of these to produce an impulse chain which is counted (6) to give the coarse position. The fine phase detection network contains a phase evaluation circuit (7) which feeds pulses to another counter (8) in which the fine position is stored. A final evaluation network (10) combines the coarse and fine data to give the total accurately defined position.
Patent DE-2735679-A1 (DE)
Title: Photocopier with enlarging facility - swings mirrors and lens assemblies into optical path to alter degree of enlargement or reduction
Inventor: TOKIWA TAISUKE
IPC: G03B27/34
Filed: 1977-08-08
Abstract: A photocopier with a facility for changing the degree of enlargement. In order to enlarge or reduce the size of the original on the drum mirrors can be swung into or out of the optical path to increase or decrease the length of the optical path to the objective lens which is fixed. Facility is also provided for a second lens system to be inserted in the optical path. All the operations are accomplished quickly by push-button selection.
Patent DE-2741220-A1 (DE)
Title: Sewing machine precision seaming device - has knurled wheel coacting with feed dog carried by presser foot and driven by machine driven flexible shaft
Inventor: PELOGGIO ALESSANDRO
IPC: D05B27/14
Filed: 1977-09-13
Abstract: Precision seaming device associated with a sewing machine includes a synchronously driven device carried by the presser foot and operative to press down the pieces which are to be seamed together against the feed dog with which it feeds the pieces for synchronous displacement of the latter. Differential feeding of the pieces, leading to differential tensioning, is prevented.
Patent DE-2744166-A1 (DE)
Title: Vertical oil shale processing oven - with carbonisation, gasification and cooling zone has metal grid cylinder for gas extraction (NL 3.4.78)
Inventor: NAZININ NIKOLAJ ANDREEVITSCH
IPC: C10J3/20
Filed: 1977-09-30
Abstract: A vertical oven for the thermal of large-sized combustible such as oil shale consists of a low-temps. carbonisation zone, a gasification zone and a cooling zone. A grid which bounds the chamber for the collection and extn. of the vapour/gas mixt. has a cylindrical surface. The feed pipes for the heat transport media for the carbonisation and gasification zones are arranged in several tiers on the oven periphery. This oven has a higher degree of filling (80-90%) and capacities of 10-15,000 tonnes of oil shale per day. The grid ensures a uniform heating of the shale in the low-temp. carbonisation zone. It is simple in design.
Patent DE-2744283-A1 (DE)
Title: Maxillary orthopaedic arch clamping mechanism - has base with trough for wire arch locked by turnbuckle
Inventor: FOERSTER ROLF
IPC: A61C7/28
Filed: 1977-10-01
Abstract: The clamping mechanism is for maxillary-orthopaedic arches of metal wire. It comprises a base member with a lengthwise trough (2) accommodating wire arches (3) either sliding or locked in place by means of a pivoting plate or turnbuckle (4) with locking members (5). This is recessed into the base member and mounted on a shaft rotating in it. The plate can be an eccentric mounting on a trunnion shaft, with its ramp face above the trough bearing against the wire. The turnbuckle can have pivoting arms of different thicknesses, and also of different widths, so as to be held by means of a suitable key.
Patent DE-2803161-A1 (DE)
Title: Carbon copy set for payment demands - has sets of margins in line on different sheets with some blocked off to form series with last sheet as final warning notice
Inventor: OEHRI JOSEF
IPC: B41L1/22
Filed: 1978-01-25
Abstract: The carbon copy set is for demanding payment of one of more accounts not yet settled, the individual sheets having divisions in line with each other formed by parallel apertures. On the sheets below the divisions there are first margins blocked off to make their hand-written parts invisible on the second and third sheets. The second and further sheets have second margins in line alongside the first, the contents on the third being likewise blocked off. The third and other sheets have third margins in line, alongside the second. The last sheet is the final warding notice.
Patent DE-2804330-A1 (DE)
Title: Purifying sulpho-phthalic acid contg. water and sulphuric acid - by washing with (cyclo)aliphatic ketone(s) opt. mixed with (chloro)hydrocarbon(s)
Inventor: BURKHARDT RUDOLF DR
IPC: C07C303/44
Filed: 1978-02-02
Abstract: Solid, crude H2SO4 - and water-contg. sulphophthalic acids, (I), esp. 5-sulphoisophthalic acid, are purified by (i) washing with >=1 aliphatic and/or cycloaliphatic 3-7C ketone, (II), and then (ii) sepg. the solids from liq.. (I) can be used as tanning auxiliaries, surfactants and as dyeability-improving co-condensates for linear polyesters. The ketone solvents (II) retain their low viscosity in contact with (I) and allow complete dissolution of H2SO4 with little loss of (I). Colourless (I) can be recovered in fine-grained, non-agglomerated form. H2SO4 content can be reduced from 2-8% to 0.05-0.15 wt.%.
Patent DE-2809087-A1 (DE)
Title: Fuel level gauge - has vertical bar of light-transmitting plastics material fitted with light-transmitting diode and photocell of photodiode
Inventor: KAMMERMAIER JOHANN DIPL PHYS D
IPC: B60K15/06
Filed: 1978-03-02
Abstract: Liquid level indicator is formed by an elongate device (4) extending from the bottom to the top in a tank (1) and having light conductive properties, the device being provided with a light transmitter (5) and a light receiver (6) so that the light received can be used for level indication. Petrol level indicating gauge for motor vehicles. Alternatively it can be used as a flowmeter by calibrating the level in a manifold to velocity of liquid flow. Level indicator is insensitive to external influences, is reliable in service and can be incorporated in tanks of any shape.